9772481321 has 4 divisors (see below), whose sum is σ = 9774835200. Its totient is φ = 9770127444.

The previous prime is 9772481309. The next prime is 9772481333. The reversal of 9772481321 is 1231842779.

9772481321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (9772481309) and next prime (9772481333).

It is a cyclic number.

It is not a de Polignac number, because 9772481321 - 2¹⁰ = 9772480297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9772481351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1170701 + ... + 1179018.

It is an arithmetic number, because the mean of its divisors is an integer number (2443708800).

Almost surely, 2^9772481321 is an apocalyptic number.

It is an amenable number.

9772481321 is a deficient number, since it is larger than the sum of its proper divisors (2353879).

9772481321 is a wasteful number, since it uses less digits than its factorization.

9772481321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353878.

The product of its digits is 169344, while the sum is 44.

The square root of 9772481321 is about 98855.8613386177. The cubic root of 9772481321 is about 2137.9700464668.

The spelling of 9772481321 in words is "nine billion, seven hundred seventy-two million, four hundred eighty-one thousand, three hundred twenty-one".